 Three indicators of intergenerational equity in economic flows, such as income, have been proposed by D'Albis, Badji, El Mekkaoui and Navaux.Their first indicator originates from a cross-sectional perspective and describes the relative situation of an age group (retirees) with respect to the situation of another age group (younger people).Their second indicator originates from a cohort perspective and compares the standards of living of successive generations at the same age.